| Abbreviation | Definition |
|---|---|
| IV | Intravehicular |
| IV&V | independent verification and validation |
| IVA | Intra Vehicular Activity |
| IVA | Intravehicular Activity |
| IVAK | Igloo Vertical Access Kit |
| IVAR | Internal Variable |
| IVBC | Integrated Vehicle Baseline Configuration |
| IVC | Intervehicular Communications |
| IVE | Interface Verification Equipment |
| IVHM | Integrated Vehicle Health Monitoring |
| IVL | lnterValoMeter |
| IVL | lntervatometer |
| IVSI | Instantaneous Vertical Speed Indicator |
| IVT | Interface Verification Test |
| IVT | Intervehicular Transfer |
| IVTE | Integration and Verification Test Environment |
| IWA | Internal Wing Assembly |
| IWBS | Indirect Work Breakdown Structure |
| IWG | Investigator Working Group |
| IWS | Instrument Work Stations |